Steel and Composite Structures

  • 제26권4호
  • /
  • Pages.501-511
  • /
  • 2018
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Behavior of circular concrete-filled steel tubular columns under pure torsion

  • Ding, Fa-xing (School of Civil Engineering, Central South University) ;
  • Fu, Qiang (School of Civil Engineering, Central South University) ;
  • Wen, Bing (School of Civil Engineering, Central South University) ;
  • Zhou, Qi-shi (School of Civil Engineering, Central South University) ;
  • Liu, Xue-mei (School of Civil Engineering and Built Environment, Queensland University of Technology)
  • 투고 : 2016.06.21
  • 심사 : 2017.12.15
  • 발행 : 2018.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

Concrete-filled steel tubular (CFT) columns are commonly used in engineering structures and always subjected to torsion in practice. This paper is thus devoted to investigate the mechanical behavior of circular CFT columns under pure torsion.3D finite element models based on reasonable material constitutive relation were established for analyzing the load-strain ($T-{\gamma}$) curves of circular CFT columns under pure torsion. The numerical simulation indicated that local bulking of the steel tube in CFT columns was prevented and the shear strength and ductility of the core concrete were significantly improved due to the confinement effect between the steel tube and the core concrete. Based on the results, formulas to predict the torsional ultimate bearing capacity of circular CFT columns were proposed with satisfactory correspondence with experimental results. Besides, formulas of composite shear stiffness and the overall process of the $T-{\gamma}$ relation of circular CFT columns under pure torsion were proposed.

키워드

참고문헌

  1. Baltay, P. and Gjelsvik, A. (1992), "Coefficient of friction for steel on concrete at high normal stress", J. Mater. Civil Eng., 2(1), 46-49. https://doi.org/10.1061/(ASCE)0899-1561(1990)2:1(46)
  2. Beck, J. and Kiyomiya, O. (2003), "Fundemental pure bearing properties of concrete filled steel tubes", Proceedings of the Japan Society of Civil Engineers, 739(739), 285-296.
  3. CECS28 (2012), Technical specification for concrete-filled steel tubular structures, China planning press; Beijing, China.
  4. Chang, X., Ru, Z. and Zhou, W. (2013), "Study on concrete-filled stainless steel carbon steel tubular (CFSCT) stub columns under compression", Thin-Wall. Struct., 63(3), 125-133. https://doi.org/10.1016/j.tws.2012.10.002
  5. Ding, F.X., Ying, X.Y. and Zhou, L.C. (2011a), "Unified calculation method and its application in determining the uniaxial mechanical properties of concrete", Front. Archit. Civ. Eng. China, 5(3), 381-393. https://doi.org/10.1007/s11709-011-0118-6
  6. Ding, F.X., Yu, Z.W. and Bai, Y. (2011b), "Elasto-plastic analysis of circular concrete-filled steel tube stub columns", J. Struct. Eng., 67(10), 1567-1577.
  7. Ding, F.X., Tan, L. and Liu, X.M. (2017), "Behavior of circular thin-walled steel tube confined concrete stun columns", Steel Compos. Struct., Int. J., 23(2), 229-238. https://doi.org/10.12989/scs.2017.23.2.229
  8. GB 50936 (2014), Technical code for concrete filled steel tubular structure, China building industry press; Beijing, China.
  9. Han, L.H. Yao, G.H. and Tao, Z. (2007), "Performance of concrete-filled thin-walled steel tubes under pure torsion", Thin-Wall. Struct., 45(1), 24-36. https://doi.org/10.1016/j.tws.2007.01.008
  10. Ju, C., Wei, L.J. and Jun, F. (2008), "Experimental investigation of thin-walled centrifugal concrete-filled steel tubes under torsion", Thin-Wall. Struct., 46(10), 1087-1093. https://doi.org/10.1016/j.tws.2008.01.015
  11. Kim, D., Jeon, C. and Shim, C. (2016), "Cyclic and static behaviors of CFT modular bridge pier with enhanced bracings", Steel Compos. Struct., Int. J., 20(6), 173-191.
  12. Kim, H.J., Ham, J. and Park, K. (2017), "Numerical study of internally reinforced circular CFT column-to-foundation connection according to design variables", Steel Compos. Struct., Int. J., 23(4), 235-247.
  13. Kwak, J.H., Kwak, H.G. and Kim, J.K. (2013), "Behavior of circular CFT columns subject to axial force and bending moment", Steel Compos. Struct., Int. J., 14(2), 173-190. https://doi.org/10.12989/scs.2013.14.2.173
  14. Lee, E.T., Yun, B.H., Shim, H.J., Chang, K.H. and Lee, G.C. (2009), "Torsional behavior of concrete-filled steel tube columns", J. Struct. Eng., 135(10), 1250-1258. https://doi.org/10.1061/(ASCE)0733-9445(2009)135:10(1250)
  15. Lee, S.H., Uy, B., Choi, Y.H. and Choi, S.M. (2011), "Behavior of high-strength concrete-filled steel tubular (CFST) column under eccentric loading", J. Constr. Steel Res., 67(1), 1-13. https://doi.org/10.1016/j.jcsr.2010.07.003
  16. Nie, J.G., Wang, Y.H. and Fan, J.S. (2012), "Experimental study on seismic behavior of concrete filled steel tube columns under pure torsion and compression-torsion cyclic load", J. Constr. Steel Res., 79(1), 115-126. https://doi.org/10.1016/j.jcsr.2012.07.029
  17. Ottosen, N.S. and Ristinmaa, M. (2005), "12-common plasticity models", In: The Mechanics of Constitutive Modeling, pp. 279-319.
  18. Shi, S.S. (1999), "The shear strength, shear modulus and elastic modulus of concrete", J. Civil Eng., 32(2), 47-52. [In Chinese]
  19. Wang, Q.T. and Chang, X. (2013), "Analysis of concrete-filled steel tubular columns with "T" shaped cross section (CFTTS)", Steel Compos. Struct., Int. J., 15(1), 41-55. https://doi.org/10.12989/scs.2013.15.1.41
  20. Xie, X.Y. and Zha, X.X. (2012), "Torsion and shear behavior study of hollow and solid concrete filled steel tubular members II: Theoretical research on strength", Progress in Steel Building Structures, 14(3), 7-11.
  21. Xu, J.S. and Zhou, J. (1991), "The experimental research of concrete filled steel tubular slender column under combined compression and torsion", J. Harbin Inst. Constr. Eng., 24, 43-50. [In Chinese]

피인용 문헌

  1. Numerical Study of Circular Concrete Filled Steel Tubes Subjected to Pure Torsion vol.11, pp.9, 2018, https://doi.org/10.3390/buildings11090397
  2. Torsional behaviour of concrete-filled circular steel tubular members under coupled compression and torsion vol.34, pp.None, 2018, https://doi.org/10.1016/j.istruc.2021.08.026
  3. Confinement Effect and Efficiency of Concentrically Loaded RACFCST Stub Columns vol.15, pp.1, 2018, https://doi.org/10.3390/ma15010154